Ego and IQ Suicide Attempt

If I wanted to kill myself, I would climb to the top of your ego then jump to your IQ.

Explanation

This is a roast! The person is saying that your ego is so high that it's like climbing a mountain, but your IQ is so low, it's like jumping off a cliff. It's a playful insult that uses a ridiculous comparison to make fun of the person's perceived arrogance and stupidity.